1. Registering for the Forum

    We require a human profile pic upon registration on this forum.

    After registration is submitted, you will receive a confirmation email, which should contain a link to confirm your intent to register for the forum. At this point, you will not yet be registered on the forum.

    Our Support staff will manually approve your account within 24 hours, and you will get a notification. This is to prevent the many spam account signups which we receive on a daily basis.

    If you have any problems completing this registration, please email support@jackkruse.com and we will assist you.

Where to purchase Bulbs to use at night(UK sites)

Discussion in 'Beginners Area' started by Paul Keenan, Jun 24, 2017.

  1. Paul Keenan

    Paul Keenan New Member

  2. Mito1

    Mito1 New Member

    ScottishEmma likes this.
  3. JanSz

    JanSz Gold


    ieGeek 24W 12 LED Plant Grow Lights, Indoor Garden LED Growing Light Bulbs E27 (3 Blue LED & 9 Red LED) Hydroponic Lamp for Indoor Plants Flowers Growth Vegetables Greenhouse Organic

    【Professional Grow Lighting】- ieGeek 12 LED grow light has optimized the wavelength to help your plants get an extra boost in production, Blue (460-470nm, promote tall & leafy plant), Red (620-630nm, 640-660nm,

    Cover blue LED's with tape.

    Exo Terra PT2193 SolarGlo Mercury Vapour Lamp, 160 Watt


    International Shipping Information[​IMG][​IMG]
    We ship to all European Union countries, and most developed countries around the world. We ship many units to Australia and New Zealand during their winter season. If you're not sure about shipping availability to your country, then simply put an item into your shopping cart and 'proceed to checkout' (no obligation), then scroll down to the address box for "Country" and view the drop down list of countries we do ship to. If you don't see your country, you may send us an email inquiry for your location.

    International orders ship with US Postal Service Priority International.
    Current International shipping rate: $120.
    This international shipping fee includes shipping and insurance from us to you.
  4. JanSz

    JanSz Gold

  5. JanSz

    JanSz Gold

    I am not able to locate anything in UK for 850nm

  6. drezy

    drezy Gold

    From loh in ( https://forum.jackkruse.com/index.php?threads/understanding-black-light.16985/page-2 )

    "Can black lights in the 365nm range be used at night? I got this from Amazon"

    Doc's response: "it will help Loh"

    Rough search on Amazon.uk for this specification:

    Maybe a specific "bulb" as asked for:

    Also consider a 365nm flashlight/torchlight to carry instead of leaving a bulb on.

    Caveat: staying up well past dark regularly is bending things a bit if you want the best benefit, but we all are forced to bend things a bit sometimes.
    ScottishEmma likes this.
  7. Sue-UK

    Sue-UK Gold

    Hi Paul

    I'm hacking low wattage incandescent bulbs and stage light filters. I got a free Lee filters swatch book from Stage Electrics in the UK, and went through the swatch to find the closest match to the -6 deg elevation, comparing the spectral patterns on the lee filters website to part A of this picture. Looking through the swatch tester helps me pick a suitable one for my own n=1. (There's a Rosco swatch as well, but at the time it was easier to get Lee filters than Rosco, but that might be different now).

    The minus 6 degrees has a distinct drop in the yellow-green, a drop in the 460 to 480, but still has 430 to 465. Reality 4: Melanopsin works with light 430 -464 at dusk. With low quantum yield already, I think my getting the sunset/dusk circadian cycle frequencies matched better than just blocking blue is a must. I now wouldn't use any high yellow or UVB anywhere around sunset. Using single or limited frequency bands without a circadian backdrop is missing a trick. ;)
    These are my after sunset blue blockers. They are so relaxing I wouldn't risk driving in them. A 1.22m x 53 cm piece cost under a tenner delivered, from ebay. I'm going to be using the rest of the sheet to make a low ambient light source for rooms used in the evening, and I have a darker shade that I'm in the process of turning into a bedroom light, so I can choose when I go from dusk to deep dusk to darkness in the evening as the days get shorter.
  8. UV Light

    1. Exoterra Solar Glo 160 W (JanSz posted above) ^^

    2. Osram ULTRA VITALUX 300 W

    Black Light

    1. CFL Blacklight

    2. LED 7W E27


    1. Philips R95

    2. Philips Infraphil


    1. Rough service (just means a bit less easy to blow/ brake - made for factories etc.)

    2. General Lamp Shade (GLS - this just means General incandescent light, at one point this was THE ONLY type of "standard" light and is hence called a GLS. Come in all different colours and shapes for decoration like pearls - the more basic the better for general lighting and health with these)

    I have a full document that I'm working on to do with Artificial "healthy" Lighting. I will upload and send if anyone wants it.

  9. JanSz

    JanSz Gold

  10. shiran

    shiran Curious

    I still want to understand fully the lighting indoors... Excuse my ignorance

    For a house that has plenty of natural lighting , but still if needed
    After the sun sets , as well as during the day

    which is the best lighting bulbs ?
    My local opinion here is : incandescent reflector lamp see pic
    It's in the sealing 2.80 m away from us.

    Attached Files:

    Last edited: Aug 9, 2017
  11. WalterNL

    WalterNL New Member

    @shiran The general idea is to reproduce natural light. As you see below, later in the day it should get more orange/red, the color temperature goes below 2000K.
    So it's probably the best choice to get a soft light that produces a warm color <2000K or get candles. Of course this would still depend on personal context.

  12. I use Infrared Lamp (Infraphil by Phillips) at night and find that helps me sleep... candles are also good but get lots of them.
    shiran likes this.
  13. drezy

    drezy Gold

    All I can say is that making a mini personal sun to light your home is a bad idea-- like real bad.

    The fun starts 41 seconds in
    Sajid Mahmood and ScottishEmma like this.
  14. JanSz

    JanSz Gold

    [qu ote="WalterNL, post: 221184, member: 19189"]@shiran The general idea is to reproduce natural light. As you see below, later in the day it should get more orange/red, the color temperature goes below 2000K.
    So it's probably the best choice to get a soft light that produces a warm color <2000K or get candles. Of course this would still depend on personal context.



    A question,
    how difficult would be to program QLED TV so it would give off proper time of the day light?
    We probably would still miss on UV and IRA
    we have start somewhere.
    I assume that eventually QLED or OLED could be made so they would emit more frequencies that we are after.

    Larger models are constantly being made.
    Eventually ceiling and walls of the room could be plastered with those panels.

  15. drezy

    drezy Gold

    Oh Jan... You and your elastic brain. You are truly a testament to the power of bacon and I'm beginning to suspect that you're younger than you profess.

    In fact, I can hear a higher calling that makes it incumbent upon me to not make any jokes about naked Jan sandwiched in between two of these units.... Not one. No mention of Dry aged beef sandwich with toasted buns, Polish sausage wrap, or Kentucky hot brown sandwich. No sir, we are going high class and science-like here and now.

    I realize that it's not the same screen but the technology is similar in this review of a different samsung screen:

    The main thing I kinda don't like is the forced 120Hz flicker that I assume will be there if the image changes or not. Also I haven't got a meter near one so I'm flying blind there.

    The underlying quantum dot technology, aside from the fact that it flickers/updates the image 120 times per second, is interesting if you could just stop that flicker. For the application that you suggest images changes would only need to be 5 minutes apart or so (again forced to 120/sec by an internal control board right now).

    Also at some point I need to look at the conversion of these screens 400 cd/m2 to the equivalent w/m2.
    Sajid Mahmood and SlamSlask like this.
  16. Jack Kruse

    Jack Kruse Administrator

    Flicker is pure nasty
    George Papamarkos, shiran and drezy like this.
  17. Jack Kruse

    Jack Kruse Administrator

    shiran likes this.
  18. Penny

    Penny New Member

    Last edited: Aug 8, 2017
  19. Penny

    Penny New Member

    Roumiana Tsenkova - Conference on the Physics, Chemistry and Biology of Water 2015

Share This Page